The A992 steel shaft has a diameter of 75 mm and is fixed at its ends A and B. The shear modulus of elasticity for the material is 75 GPa. The shaft is subjected to the torques shown in the figure below. (Figure 1) Part A Determine the absolute maximum shear stress in the shaft. Express your answer to three significant figures and include the appropriate units.

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Torsion

In mechanical engineering, torque, torsion, and twisting moment are three of the most important concepts which have different meanings. Torque is the consequence of a moment of a force that produces an angular acceleration in a body or induces rotational kinetic energy in a body. For instance, in an automobile, the power transmission shaft is a body that is always under rotation due to the external torque acting on it, this torque is created by the engine.